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Police say the cameras catch an average of 17 red-light violations every day.

The city has 12 cameras at nine intersections. They operate around-the-clock, with violations carrying a $75 fine.

Police say violations at intersections with a camera fell by 55 percent between July 2005 and July 2013.

Police have issued more than 50,000 citations during those eight years. Fines have totaled $3.8 million since the program began.

Lt. Jason Keckler, the patrol operations commander for the city's police department, tells The Frederick News-Post that the cameras have had a "direct impact on changing driving behavior" and have improved safety.